本人新手，想做個三位共陰級數碼管顯示秒表練習。第一個數碼管顯示秒記到10清零，后兩個顯示毫秒記到100清零。但最后只顯示三個0就不動了，麻煩各位給看看哪里不對。
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit dula=P2^6;
sbit wela= P2^7;
uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};
uchar num,num1,bai,shi,ge;
void display(uchar,uchar,uchar);
void yanshi(uint);
void main()
{
TMOD=0x01;
TH0=(65536-1000)/256;
TL0=(65536-1000)%256;
EA=1;
ET0=1;
TR0=1;
while(1)
{
display(bai,shi,ge);
}
}
void display(uchar bai,uchar shi,uchar ge)
{
dula=1;
P0=table[bai];
dula=0;
P0=0xff;
wela=1;
P0=0xfb;
wela=0;
yanshi(5);
dula=1;
P0=table[shi];
dula=0;
P0=0xff;
wela=1;
P0=0xfd;
wela=0;
yanshi(5);
dula=1;
P0=table[ge];
dula=0;
P0=0xff;
wela=1;
P0=0xfe;
wela=0;
yanshi(5);
}
void yanshi(uint zms)
{
uint x,y;
for(x=zms;x>0;x--)
for(y=110;y>0;y--);
}
void T0_time() interrupt 1
{
TH0=(65536-1000)/256;
TL0=(65636-1000)%256;
num1++;
if(num1==10);
{
num1=0;
num++;
if(num==100);
{ num=0;
bai=num/100;
shi=num%100/10;
ge=num%10;
}
}
}
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